Pick-up truck cap



FIG. 1 is a perspective view of a pick-up truck cap, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a pick-up truck cap, as shown. 